Only in a world where people who care about performance don't hand the compiler enough of the program to make that determination (which only requires being able

Only in a world where people who care about performance don't hand the compiler enough of the program to make that determination (which only requires being able to see the original allocation site and the call) That's crazytown. "Please optimize this as hard as you can with two hands tied behind your back". So like i said, i don't disagree that it's a useful thing to do, i just am not sure i believe it matters in practice to people who care about performance. IE the purported benefit is already achievable and achieved, quite regularly. Again, doesn't make it less useful in general, i'm just not sure i believe it is somehow amazing for performance to people who care about performance.